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openairinterface5g/openair2/UTIL/OMG/mobility_parser.h
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/*******************************************************************************
OpenAirInterface
Copyright(c) 1999 - 2014 Eurecom
OpenAirInterface is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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GNU General Public License for more details.
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see <http://www.gnu.org/licenses/>.
Contact Information
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*******************************************************************************/
/*! \file mobility_parser.h
* \brief A parser for trace-based mobility information (parsed from a file)
* \author S. Uppoor
* \date 2011
* \version 0.1
* \company INRIA
* \email: sandesh.uppor@inria.fr
* \note
* \warning
*/
#ifndef MOBILITY_PARSER_H_
#define MOBILITY_PARSER_H_
#include "trace_hashtable.h"
/*
* function reads each line and checks if vehicle has an entry in the hastable,
* if so append append is called else a new linked list to the vehicle is created.
* @param need mobility file to be given
*/
void parse_data (char *trace_file, int node_type); // mobility file need to be given here, add in omg_param_list, get it from there
/**
* function builds a linked list which holds vehicle id and its mapping pointer to
* the head of the linked list in the hash table.
* @param headRef is the pointer to this linked list
* @param vid is the vehicle id
* @param pointer to the head of the linked list to the vehicle entry in the hash table
*/
void add_node_info (int nid,int n_gid, int node_type);
int find_node_info (int vid, int node_type);
/**
* just counts the number of nodes in the mobility file
*/
int get_number_of_nodes (int node_type);
/**
* function returns the node containing next position (just reads the linked list from the hashtable)
* and never repeats, each time next location ahead of the current is returned
* @param hashtable from which the node is to be looked
* @param node_id is the nodes whose next location need to be retrieved from the linked list
*/
node_data* get_next_data (hash_table_t* table, int vid, int flag);
#endif /* MOBILITY_PARSER_H_ */